Response of Ferroelectric Molecules in Liquid Crystal Display under an Applied Electric Field |
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Authors: | Misaki Takei Hideki Shirochi Masafumi Yamashita |
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Institution: | (1) Department of Science and Technology, Tokyo University of Science, 2641 Yamazaki, Noda Chiba, 278-8510, Japan |
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Abstract: | The dynamic changes of ferroelectric liquid crystal (FLC) molecular alignments under the applied electric field were examined
by observing the formation of conoscopic figures with a time resolution of 0.1 ms, which reflect the temporal and spatial
dependences of the LC molecular alignments on the azimuthal angle. By a detailed comparison of the experimental conoscopic
figures with simulated figures, the molecules began to shift from the central portion of the helix to the outer ends within
0.1 ms following application of the electric field. The positions of molecular layers having the fastest moving velocity (Δφ/Δt) corresponded to the positions with the azimuthal angles of π/2 and 3π/2rad. |
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Keywords: | ferroelectric liquid crystal helical structure conoscopic figure dynamic orientational process azimuthal angle |
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